21. A. maps　　　　　　　　　　　 B. titles　　　　　　　　　　 C. articles　　　　　　　　 D. reports

5. pride 　6. apology 　　7. avoid　　 8. result /come　 　　　 9.aware　 　　 10.making　

74. According to some psychologists’ opinion we can find that ______.

　　　 A. dogs and cats used to be the most popular pets.

　　　 B. without animals human beings would feel lonely.

　　　 C. it is not right for human beings to control nature.

　　　 D. modern people should prefer dangerous animals to dogs and cats.

73. It can be concluded from this passage that ________.

　　　 A. keeping pets is very popular all over the world.

　　　 B. keeping pets is very popular in some poor countries.

　　　 C. keeping pets is against law in some rich countries.

　　　 D. keeping pets costs a lot of money in some countries.

72. Some people keep dangerous animals in their backyards for the reason that _______.

　　　 A. they want to protect themselves form being killed.

　　　 B. they want to show the fact that they will protect animals.

　　　 C. they want to have the feeling of respect from their neighbors.

　　　 D. they want to make a lot of money from the unusual animals.

79. [A] 意为：创造精神。

　文章第一.二段是自问自答，提出了本文旨在论证的问题；第三.四段指出了教育的影响；第五.六段指出了奖励制度带来的鼓励的影响；第七.八段探讨了早期美国人特有的思维方式所起的决定性作用。最后一段是全文的总结。可见，本文主要探讨了早期美国人的创造热情及其根源。

　B意为：有效的教育。　C意为：思维方式。　D意为：发明热。

　可见，[B].[C].[D]都太抽象而且片面。

(E)

The Gabon Viper is a snake that grows to two metres in length. It is black all over and as thick as a strong man’s arm. When angry, it barks like a dog and spits poison. It is one of nature’s most dangerous gifts to the world. Most people would prefer nature to keep gifts like that to itself.

　　 Others think differently. They think that Gabon Vipers, along with other poisonous snakes, spiders and reptiles are perfect animal friends for their children. They believe that the neighbors will be envied if they keep a lion in the backyard. And they believe that no home is complete without a monkey or a parrot in a cage. That is why the trade in unusual pets is now worth over US $ 10 billion per year in spite of being illegal in most countries.

　　 The serious effect of the trade is the damage it does to the natural environment. Hunters catch young parrots by cutting down the trees which the birds use to make nests in. Baby monkeys always stay close to their mothers. So the hunters simply shoot the mothers.

　　 These facts are now well known, but the trade continues. It seems that the strong desire to keep pets has deep roots in the human mind. Some psychologists(心理学家)say that it is a way for people to get closer to nature. People keep cats and dogs as a kind of historical echo(仿效)of the days when dogs were used to control sheep and cats were kept in the home to hunt mice and rats. As technology moves society further away from the natural world, the desire to keep in touch with it grows stronger. Dogs and cats become boring. Only snakes, bears, lions and other dangerous creatures satisfy some people’s desire to get personal control over nature.

　　 This is why there are now more tigers kept as pets in the United States than there are living naturally in the world. One result of this is an increase in attacks on humans. According to a report, there is more chance of a child being killed by a Bengal Tiger in Texas than there is in Bengal.

78. [B]

　第八段指出，这种非语言的“空间”思维在创造力方面可以与绘画和写作相比。正如Fulton所指出的：“正像诗人坐在字母中一样，技工应该坐在杠杆.螺钉.楔子.轮子等中间，把它们看作自己思想的展现。在这个展现过程中，每一个新的排列方式都传达一种新的思路。”可见，进行形象的空间思维是这两种人的共同特征。

　A意为：他们都是获奖者。

　C意为：他们都放弃了语言的描述。善于进行非语言的空间思维不等于说放弃语言的表达。

D意为：他们都使用各式各样的工具。

77. [A]

　第三段指出，由于这些学校的存在，我们的技工们基本上都识文断字.熟知算术及某些几何学与三角学知识。可见，早期美国技工的适应能力与创造能力在很大程度上得益于数学知识。第四段对此进行了进一步说明。

　B意为：解释了学校管理的严格性。

　C意为：产生于优越的家庭训练。

D意为：在很大程度上归功于技术的发展。

76. [D] 在作者看来，美国早期出现的发明创造热是由几个因素共同促成的，但是，在这些因素中，美国人在思考技术问题时所表现出的非语言的(指：无法用语言表达的)“空间”思维能力起了最大的作用。参阅第二段，持别注意本段中above all的使用。在文章最后三段，作者又对这种持殊的思维方式进行了进一步的.重点的说明。

　A意为：小学。　B意为：充满热情的工人们。　C意为：吸引人的奖励制度。

[A].[B].[C]所谈的内容都是促成美国早期的发明创造热的因素，但都不是主要因素。